Gibbs's researches were mainly in analytical and inorganic chemistry, the cobalt-amines, platinum metals, and complex acids being especially investigated. He also published a number of articles related to spectroscopy and the measurement of wavelengths. Gibbs was said to have been an excellent teacher who contributed many articles to scientific journals.

Commemorations

Gibbs has been immortalized in the naming of the Gibbs features in and near Yosemite National Park. Mt. Gibbs stands 3,893 metres (12,773 ft) above sea level. Gibbs Lake is located at 2,905 m (9,530 ft) above sea level in the canyon northeast of the peak. Gibbs Lake is formed by Gibbs Creek, originating in the upper reaches of Gibbs Canyon, and drains into Lee Vining Canyon.

Gibbs is one of the few scientists recognized in the United States Capitol in Washington DC. A small statue of him is on the Amateis bronze doors.